User guide

43BusinessPhone – IP Telephone Dialog 3413

Other Useful Facilities

Direct Inward System Access (DISA)

If you are working externally and you have the need to make

business calls, call your company and use the company PBX to

make an external call to the desired party. You just pay the costs for

the phone call to your company. The other costs will automatically

be placed on your extension number or on a special project.

Note: To activate this function, you have to change the

default password from “0000” to a personal one. Which

code to use and how to change it, see section “Select

password” on page 47.

You can also divert calls from your office extension to your external

position, see section “Call Forwarding” on page 16. During the

procedure you will be prompted for your password. Use the quick

reference card at the beginning of the guide to remember these

specific numbers.

z Dial the public number of your company

z followed by the DISA number

Ask the system administrator for the defined DISA number.

Note: If want to register the call on an account number, you

should use the account number procedure before you enter

the external number, see section “Account number” on

page 42.

z Dial the external number

Use the external diversion function

Procedure, see section “Call Forwarding” on page 16.

Note: If you program a new diversion address, remember

to reset it when you return to your office.